Mathematics, 07.05.2017 19:51 marie1211

# Andrew took a random sample of 10 decorated ceramic cups from a population of 100 cups. barbara took another random sample of 10 cups from the same population for the same task. what would happen if andrew and barbara both choose a sample size of 20? the difference of their sample means is likely to .. a. remain the same b. increase c. decrease

i think the answer is increase because:

10 divide by 100 = 0.1

10 divided by 90 = 0.1

but 20 divided by 100 = 0.2

and 20 divided by 80= 0.25

Answers: 3

Mathematics, 04.02.2019 06:14

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

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The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

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